Date of Birth: 
About Alexander Amatus Thesleff
- Alexander Amatus Thesleff (25 March 1907 Viipuri – 6 November 1983 ) was a Finnish diplomat and a lawyer.
- He was Head of the Administrative Department of the Ministry for Foreign Affairs 1958-1959 and Head of the Legal Department 1964-1966.
- He was an ambassador in Brussels and Luxembourg from 1959 to 1963, and in Dublin from 1962 to 1963.
- He was in active from 1963 to 1964.
- In 1973, he was appointed to Chile, but his main place of work was in Buenos Aires, Argentina, where he was the Envoy in 1966-1974.
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